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Open Chemistry

formerly Central European Journal of Chemistry


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Volume 7, Issue 3

Issues

Volume 13 (2015)

Electrochemical study and MO — modeling of the reduction behaviour of some arylidene substituted derivatives of dibenz [b,e]-thiepin-5,5-dioxide-11-one

Loredana Preda / Elena Volanschi
Published Online: 2009-06-21 | DOI: https://doi.org/10.2478/s11532-009-0046-7

Abstract

The electrochemical reduction of four arylidene substituted derivatives of dibenz-[b,e]-thiepin-5,5-dioxide-11- one has been studied by cyclic voltammetry on platinum (Pt) electrode in aprotic media (DMSO), coupled with spectral EPR techniques. From the analysis of cyclic voltammetry experiments, aided by digital simulations using DigiSim software, the kinetic and thermodynamic parameters were evaluated for each system. The electrochemical behaviour is strongly directed by the nature of the arylidene substituents bound to the central heterocycle. The electrochemical investigation and solvent dependent semiempirical modeling using the PM3 hamiltonian in the frame of AMPAC program package allowed a rationalisation of experimental data regarding the electrochemical reduction and the reactivity of the intermediate species involved.

Keywords: Electrochemical reduction; Cyclic Voltammetry; EPR-Spectroelectrochemistry; Heterocyclic Sulfones; Solvent dependent MO-modeling

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About the article

Published Online: 2009-06-21

Published in Print: 2009-09-01


Citation Information: Open Chemistry, Volume 7, Issue 3, Pages 486–493, ISSN (Online) 2391-5420, DOI: https://doi.org/10.2478/s11532-009-0046-7.

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© 2009 Versita Warsaw. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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